The author is apparently still in the early stages of revising what the AI wrote, according to the README, so readers might want to hold off a bit on downloading the epub.

But both the license terms (CC BY-NC-ND 4.0) and the repo's LICENSE.md appear to agree that distributing the epub is OK.

> ND (NoDerivatives). If you remix, transform, or build upon the material, you may not distribute the modified material.

Unfortunately since I modified the cover image (I ended up resizing it) I don't think I'd be allowed to distribute my EPUB file.

As mentioned in another comment, I don't think I'm allowed to distribute my modified EPUB as per the repo's license (nor do I really know the best way to do so, I don't use cloud storage). That said, I have written an Issue suggesting making an Action to build EPUBs and place them in the repo's releases: https://github.com/BruceEckel/ThinkingInPython/issues/12

If the people here comment on it, the author might be inclined to add this.

I too would appreciate simple access to the epub.